212330011177 has 2 divisors, whose sum is σ = 212330011178. Its totient is φ = 212330011176.

The previous prime is 212330011171. The next prime is 212330011247. The reversal of 212330011177 is 771110033212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184359455641 + 27970555536 = 429371^2 + 167244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212330011177 is a prime.

It is not a weakly prime, because it can be changed into another prime (212330011171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106165005588 + 106165005589.

It is an arithmetic number, because the mean of its divisors is an integer number (106165005589).

Almost surely, 2^212330011177 is an apocalyptic number.

It is an amenable number.

212330011177 is a deficient number, since it is larger than the sum of its proper divisors (1).

212330011177 is an equidigital number, since it uses as much as digits as its factorization.

212330011177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 212330011177 its reverse (771110033212), we get a palindrome (983440044389).

The spelling of 212330011177 in words is "two hundred twelve billion, three hundred thirty million, eleven thousand, one hundred seventy-seven".